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Finding the Fourth Proportional to 70,700.63, 97,567.50 and 38,435.31

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Solution

The fourth proportional to 70,700.63, 97,567.50 and 38,435.31 is: 53,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,700.63 : 97,567.50 = 38,435.31 : x
  2. Step 2: Convert to fraction form
    70,700.63/97,567.50 = 38,435.31/x
  3. Step 3: Cross multiply
    70,700.63x = 97,567.50 × 38,435.31
  4. Step 4: Simplify right side
    70,700.63x = 3,750,036,916.25
  5. Step 5: Solve for x
    x = 3,750,036,916.25/70,700.63
  6. Step 6: Final answer
    x = 53,041.07

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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.