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Finding the Fourth Proportional to 9,988.58, 14,894.74 and 9,498.06

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Solution

The fourth proportional to 9,988.58, 14,894.74 and 9,498.06 is: 14,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.58 : 14,894.74 = 9,498.06 : x
  2. Step 2: Convert to fraction form
    9,988.58/14,894.74 = 9,498.06/x
  3. Step 3: Cross multiply
    9,988.58x = 14,894.74 × 9,498.06
  4. Step 4: Simplify right side
    9,988.58x = 141,471,134.20
  5. Step 5: Solve for x
    x = 141,471,134.20/9,988.58
  6. Step 6: Final answer
    x = 14,163.29

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.