Finding the Fourth Proportional to 7,092,830.70, 10,639,246.05 and 4,927,992.30
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Solution
The fourth proportional to 7,092,830.70, 10,639,246.05 and 4,927,992.30 is: 7,391,988.45
Step by Step Solution
- Step 1: Write the proportion equation
7,092,830.70 : 10,639,246.05 = 4,927,992.30 : x - Step 2: Convert to fraction form
7,092,830.70/10,639,246.05 = 4,927,992.30/x - Step 3: Cross multiply
7,092,830.70x = 10,639,246.05 × 4,927,992.30 - Step 4: Simplify right side
7,092,830.70x = 52,430,122,612,205.41 - Step 5: Solve for x
x = 52,430,122,612,205.41/7,092,830.70 - Step 6: Final answer
x = 7,391,988.45
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Double scale
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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.