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Finding the Fourth Proportional to 9,904.74, 14,859.59 and 6,988.74

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Solution

The fourth proportional to 9,904.74, 14,859.59 and 6,988.74 is: 10,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,904.74 : 14,859.59 = 6,988.74 : x
  2. Step 2: Convert to fraction form
    9,904.74/14,859.59 = 6,988.74/x
  3. Step 3: Cross multiply
    9,904.74x = 14,859.59 × 6,988.74
  4. Step 4: Simplify right side
    9,904.74x = 103,849,776.07
  5. Step 5: Solve for x
    x = 103,849,776.07/9,904.74
  6. Step 6: Final answer
    x = 10,484.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.