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Finding the Fourth Proportional to 70,585.34, 97,407.96 and 38,756.30

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Solution

The fourth proportional to 70,585.34, 97,407.96 and 38,756.30 is: 53,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,585.34 : 97,407.96 = 38,756.30 : x
  2. Step 2: Convert to fraction form
    70,585.34/97,407.96 = 38,756.30/x
  3. Step 3: Cross multiply
    70,585.34x = 97,407.96 × 38,756.30
  4. Step 4: Simplify right side
    70,585.34x = 3,775,172,120.15
  5. Step 5: Solve for x
    x = 3,775,172,120.15/70,585.34
  6. Step 6: Final answer
    x = 53,483.80

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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.