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Finding the Fourth Proportional to 70,509.56, 97,320.12 and 47,886.26

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Solution

The fourth proportional to 70,509.56, 97,320.12 and 47,886.26 is: 66,094.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,509.56 : 97,320.12 = 47,886.26 : x
  2. Step 2: Convert to fraction form
    70,509.56/97,320.12 = 47,886.26/x
  3. Step 3: Cross multiply
    70,509.56x = 97,320.12 × 47,886.26
  4. Step 4: Simplify right side
    70,509.56x = 4,660,296,569.55
  5. Step 5: Solve for x
    x = 4,660,296,569.55/70,509.56
  6. Step 6: Final answer
    x = 66,094.53

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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.