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Finding the Fourth Proportional to 9,054.55, 12,501.39 and 5,656.76

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Solution

The fourth proportional to 9,054.55, 12,501.39 and 5,656.76 is: 7,810.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,054.55 : 12,501.39 = 5,656.76 : x
  2. Step 2: Convert to fraction form
    9,054.55/12,501.39 = 5,656.76/x
  3. Step 3: Cross multiply
    9,054.55x = 12,501.39 × 5,656.76
  4. Step 4: Simplify right side
    9,054.55x = 70,717,331.64
  5. Step 5: Solve for x
    x = 70,717,331.64/9,054.55
  6. Step 6: Final answer
    x = 7,810.14

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.