Home / 70,605.12-97,435.02-38,776.02

Finding the Fourth Proportional to 70,605.12, 97,435.02 and 38,776.02

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Solution

The fourth proportional to 70,605.12, 97,435.02 and 38,776.02 is: 53,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.12 : 97,435.02 = 38,776.02 : x
  2. Step 2: Convert to fraction form
    70,605.12/97,435.02 = 38,776.02/x
  3. Step 3: Cross multiply
    70,605.12x = 97,435.02 × 38,776.02
  4. Step 4: Simplify right side
    70,605.12x = 3,778,142,284.22
  5. Step 5: Solve for x
    x = 3,778,142,284.22/70,605.12
  6. Step 6: Final answer
    x = 53,510.88

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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.