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Finding the Fourth Proportional to 65,015.40, 97,307.10 and 47,195.40

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Solution

The fourth proportional to 65,015.40, 97,307.10 and 47,195.40 is: 70,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,015.40 : 97,307.10 = 47,195.40 : x
  2. Step 2: Convert to fraction form
    65,015.40/97,307.10 = 47,195.40/x
  3. Step 3: Cross multiply
    65,015.40x = 97,307.10 × 47,195.40
  4. Step 4: Simplify right side
    65,015.40x = 4,592,447,507.34
  5. Step 5: Solve for x
    x = 4,592,447,507.34/65,015.40
  6. Step 6: Final answer
    x = 70,636.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.