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Finding the Fourth Proportional to 70,355.63, 97,090.93 and 38,090.59

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Solution

The fourth proportional to 70,355.63, 97,090.93 and 38,090.59 is: 52,565.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,355.63 : 97,090.93 = 38,090.59 : x
  2. Step 2: Convert to fraction form
    70,355.63/97,090.93 = 38,090.59/x
  3. Step 3: Cross multiply
    70,355.63x = 97,090.93 × 38,090.59
  4. Step 4: Simplify right side
    70,355.63x = 3,698,250,807.35
  5. Step 5: Solve for x
    x = 3,698,250,807.35/70,355.63
  6. Step 6: Final answer
    x = 52,565.10

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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.